海拔和遮阴对缺苞箭竹大小的影响  

Effect of Altitude and Canopy-shade on the Size of Fargesia denudata

作　　者：朱育旗 夏勇 ZHU Yuqi;XIA Yong(Sichuan Forestry Group Co.Ltd.,Chengdu 610041,China;Sichuan Forestry Materials Supply and Marketing Co.Ltd.,Chengdu 610081,China)

机构地区：[1]四川林业集团有限公司,四川成都610041 [2]四川省林业物资供销有限公司,四川成都610081

出　　处：《四川林业科技》2023年第4期97-103,共7页Journal of Sichuan Forestry Science and Technology

摘　　要：为了解海拔和遮阴对缺苞箭竹(Fargesia denudata)大小的影响,以平武县老河沟自然保护区高低海拔3种遮阴生境自然分布的缺苞箭竹为对象,对基径和株高及形状指数进行了研究。结果表明:缺苞箭竹的基径、株高和形状指数分别为8.65±1.67 mm、243.2±62.8 cm和282.4±53.6cm,都具有一定的可塑性,且受海拔和遮阴的显著影响;高海拔的缺苞箭竹基径和高度极显著大于低海拔,遮阴有利于缺苞箭竹长高、形成细长植株,全光照的缺苞箭竹则通常粗矮。总体表现为缺苞箭竹能适应高海拔,并在高海拔林下长得较为高大,有树冠遮阴保护的缺苞箭竹较全光照更纤细。In order to explore the effect of altitude and canopy-shade on the size of Fargesia denudata,the plant size(basel diameter and plant height)and shape index had been surveyed within Laohegou Nature Reserve,Pingwu County,northwestern Sichuan.The results showed:the basel diameter,plant height and shape index of Fargesia denudata within Laohegou Nature Reserve were 8.65±1.67 mm,243.2±62.8 cm and 282.4±53.6,respectively.And the Plant size and shape had certain plasticity,and been significantly affected by altitude and canopy-shade.The F.denudata from higher altitude had higher basel diameter and height.Canopy shading was conducive to F.denudata to grow higher and slenderer while F.denudata grew shorter and smaller.The present study highlighted that the Fargesia denudata could adapt to higher altitude and grew larger,the plant within the canopy-shade were slender than that from the sunny,which would help to manage the bamboo grove for giant panda.

关 键 词：缺苞箭竹 植株大小 形状指数 老河沟 

分 类 号：S795.2[农业科学—林木遗传育种]